y-block lifters

Posted By lameyer 15 Years Ago

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y-block lifters

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lameyer	Posted 15 Years Ago
Supercharged Group: Forum Members Last Active: 3 Years Ago Posts: 42, Visits: 2.5K	Does a 292 use the same style of lifters as the 272?
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y-block lifters By lameyer ( 15 Years Ago )

239, 256, 272, 292, and 312 all use the same lifters. By Butch Lawson ( 15 Years Ago )

Thank's By lameyer ( 15 Years Ago )

lamyer: If you are buying new lifters, be careful! There are some off... By PF Arcand ( 15 Years Ago )

There were at least three different types of factory tappets. Two... By Dennis K. ( 14 Years Ago )

It would be great to get to the bottom of this issue of what lifter... By Barry L ( 14 Years Ago )

Here's a pic of the broken lifter from JC 's engine . Barry By Barry L ( 14 Years Ago )

Re the failure, was anyone able to tell if that was the root cause or... By Dennis K. ( 14 Years Ago )

Not a pretty sight.

Do you know were the tappet was located... By marvh ( 14 Years Ago )

I'll have to check with Jerry C. about part numbers. He did say the... By Barry L ( 14 Years Ago )

Just pulled our 312 down today and surprisingly half the lifter fell... By EBird1 ( 14 Years Ago )

[quote][b]EBird1 (3/7/2011)[/b][hr]Just pulled our 312 down today and... By Ted ( 14 Years Ago )

Hate to say it but I think your right. That break does look too... By EBird1 ( 14 Years Ago )

Knowing Jerry and his intended use for this engine, I'm sure it had a... By Hoosier Hurricane ( 14 Years Ago )

I’ll add that pushrod clearance issues at the heads and/or... By Ted ( 14 Years Ago )

So what do you guy's think of Elgin valve train part's? I plan on... By lameyer ( 14 Years Ago )

[quote][b]lameyer (1/2/2011)[/b][hr]So what do you guy's think of... By Ted ( 14 Years Ago )

Yes, both hardness and case depth. There are ways of checking with... By Dennis K. ( 14 Years Ago )

What sort of experimentation has been done with using different... By GREENBIRD56 ( 14 Years Ago )

I was there when Jerry C's lifter failed... His engine was running on... By RB ( 14 Years Ago )

Royce, thanks for the flywheels, I took a pass on the block. As to the... By Barry L ( 14 Years Ago )

Barry I sure would not risk it if I was unsure of my lifters origin.... By marvh ( 14 Years Ago )

Has anybody spoken to Vern about the failure. I gotta admit that I"m a... By Oldmics ( 14 Years Ago )

[quote][b]Oldmics (1/4/2011)[/b][hr]Has anybody spoken to Vern about... By aussiebill ( 14 Years Ago )

I always bank on the old original USA stuff .My vote is Wohlert, just... By speedpro56 ( 14 Years Ago )

If I read the article correctly in the latest issue, #101 of YBM,... By PF Arcand ( 14 Years Ago )

Ted: A thought based on your observation about the undercut on the... By PF Arcand ( 14 Years Ago )

[quote][b]PF Arcand (1/6/2011)[/b][hr]Ted: A thought based on your... By Ted ( 14 Years Ago )

In reading the YBM article on Jerry's engine, it was stated the broken... By Hoosier Hurricane ( 14 Years Ago )

Hi John, The broken rocker was a stock style with bronze bushing and... By Barry L ( 14 Years Ago )

Another scenario could be that the broken rocker arm jammed under the... By Y block Billy ( 14 Years Ago )

A little bit more about the problems on Jerry's EMC engine...We... By RB ( 14 Years Ago )

[quote][b]Y block Billy (1/8/2011)[/b][hr]Ted, On the undercutting,... By Ted ( 14 Years Ago )

I've seen some good bushed rockers in the past but generally I stay... By mctim64 ( 14 Years Ago )

I have used the bushed rockers and have had no problems either. I like... By marvh ( 14 Years Ago )

Ted: A late tool shop machinist friend of mine referred to those... By Hoosier Hurricane ( 14 Years Ago )

[quote][b]Hoosier Hurricane (1/10/2011)[/b][hr]Ted: A late tool shop... By Dennis K. ( 14 Years Ago )

Ted, Dennis, All good points there, I do think some of the undercuts... By Y block Billy ( 14 Years Ago )

Not strength, flexibility. It essentially makes the part tougher,... By charliemccraney ( 14 Years Ago )

"Flexibility" is a good term, many things that are made "tougher"... By mctim64 ( 14 Years Ago )

Bill/ Charlie, In simple terms, so I can understand it. If you... By pegleg ( 14 Years Ago )

I understand. I should rephrase. Flexibility, per Ted's explanation,... By charliemccraney ( 14 Years Ago )

Great analogy,Charlie! By PWH42 ( 14 Years Ago )

There are basically three reasons to provide an undercut radius - the... By GREENBIRD56 ( 14 Years Ago )

As I understand it, it's the lines of strain that get concentrated at... By pcmenten ( 14 Years Ago )

[quote]Also, was there enough of the right kind of ZDDP in the oil?... By pegleg ( 14 Years Ago )

[quote][b]pegleg (1/12/2011)[/b][hr]. Like to see photos of the cam... By mctim64 ( 14 Years Ago )

Good thread guys! Steve, Thanks for the engineering graphs.... By Ted ( 14 Years Ago )

Very good stuff Guy's. I thought Royce mentioned there were no... By Y block Billy ( 14 Years Ago )

There was no wear pattern of any kind on either the lifter or the cam... By RB ( 14 Years Ago )

Thanks Royce. I think must of us are just grasping for something... By Ted ( 14 Years Ago )

I had a long talk we Vern Schumann today and the subject of Jerry's... By John Mummert ( 14 Years Ago )

[quote][b]John Mummert (1/14/2011)[/b] If you are using .502" OD... By DANIEL TINDER ( 14 Years Ago )

[quote][b]DANIEL TINDER (1/15/2011)[/b][hr]John/Ted, Since... By Ted ( 14 Years Ago )

John . Thanks for the input. I have never seen a flat... By Ted ( 14 Years Ago )

Thanks for the clarity John, Now I am wondering if it wouldn't be... By Y block Billy ( 14 Years Ago )

[quote][b]Y block Billy (1/16/2011)[/b][hr]Thanks for the clarity... By DANIEL TINDER ( 14 Years Ago )

And babying the motor until some guide wear is realized likely not... By DANIEL TINDER ( 14 Years Ago )

Jerry C took the heads to R&R Performance in Spring Lake Park MN.... By RB ( 14 Years Ago )

Royce . Was it an intake or exhaust lifter that broke? Just... By Ted ( 14 Years Ago )

Ted, I checked with Jerry and it was an intake valve that had the... By RB ( 14 Years Ago )

That is a :crying: picture. Doubt if it is possible but sure hope... By 46yblock ( 14 Years Ago )

Agree that it is a fresh break, also a break as such would not have... By Y block Billy ( 14 Years Ago )

Royce, I would be curious to know what the actual guide clearance on... By John Mummert ( 14 Years Ago )

John, the clearance on the guides varied from .001 to .0013. Jerry had... By RB ( 14 Years Ago )

Royce . Pass on to Jerry that I worked on an early model... By Ted ( 14 Years Ago )

Further on lifter failures; the latest issue of YBM, issue #102,... By PF Arcand ( 14 Years Ago )

No evidence of valve hitting piston when we pulled the head and no... By RB ( 14 Years Ago )

Royce, ain't no how, ain't no way I would bolt those heads back on... By John Mummert ( 14 Years Ago )

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